SsangYong Korando III (2010 year). Manual - part 159

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2. IMMOBILIZER/REMOTE CONTROL KEY CODING

1) System Overview

While the communication between BCM/SKM and ECU is based on the CAN communication, the 

communication between transponder and BCM/SKM is based on LF (Low frequency) and RF (Radio 

frequency). When the ignition switch is turned to ON position, the BCM checks the verified transponder 

according to the immobilizer verification procedure, if correct, allows the vehicle to start the engine. The 

immobilizer indicator comes on during the communication and if the verification is carried out 

successfully the indicator goes off.

If there is something wrong in the system, the indicator blinks. 

2) System Layout

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8710-01

3) Operation of Immobilizer

When the ignition switch is turned to the ON position with REKES key, the BCM checks the crypto code 

of the inserted key using the immobilizer antenna and sends whether the engine is startable or not to the 

engine ECU through the CAN communication so that the engine can be started.

BCM

REKES key

Immobilizer antenna

ECU

CAN line

For the vehicle with the immobilizer, there can be a problem in starting the vehicle or the system error:

When two or more immobilizer keys come into contact with (each) other(s).

When the key is close to any device sending or receiving electromagnetic fields or waves other 

than Ssangyong products.

When the key is close to any electronic or electric devices such as lighting equipment, security keys 

or security cards.

When the key is close to a magnetic or metal object or a battery.

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4) Components of REKES Key

Battery cover

Side & main cover

Battery: CR2032

Transponder

Key plate

Remote control PCB

How to replace battery

▶

Remove the battery cover using a flat screwdriver to replace the battery.

How to replace transponder

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Remove battery cover and battery

Remove rubber cover and screw then remove key plate

Remove side cover and main cover

Replace transponder

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Do not drop or shock to the transponder in the key as it may be damaged.

With a damaged transponder, the engine cannot be started.

When you erase the code or register an extra key, please attend on the site.

In any cases, the immobilizer system can not be removed from the vehicle. If you attempt to 

remove it and damage the system, starting will be impossible, so never attempt to remove, damage 

or modify it.

The remote engine starter cannot be installed to the vehicle equipped with the immobilizer system.

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8712-03

1. SPECIFICATIONS

Item

Specification

Rated voltage

DC 12 V

Operating voltage

DC 6.0V ~ 16.0V

DC 6.0V ~ 18.0V(CAN)

Operation temperature 

-30°C to +80°C

Modulation method

FSK

Dark current

5.5 mA + Auto A/P (12 mA)

Maximum humidity

95%

Range

10 m or more (OPEN SITE)

Voltage drop

1.0 V or less

Receive frequency

433.920±0.015 MHz(EU)

315,000±0.015 MHz(GER)

Bandwidth

15 KHz ± 2 KHz or less